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' J. B. OLDERSHAW.

Fireplace Heater.

No. 242,027. Patented May 24,1881.

WlTNESSES. I INVENTOR ha JBflZoZerskaw.

ATTORNEY.

N. PETERS. "mo-WNW, Wanhlugion. D. C.

UNITED STATES PATENT OFFICE.

JOHN B. OLDERSHAW, OF BALTIMORE, MARYLAND.

FIRE-PLACE HEATER.

SPECIFICATION forming part of Letters Patent No. 242,027, dated May 24,1881.

Application filed March 3, 1881. (N0 model.)

To all whom it may concern Be it known that I, J OHNB. OLDERSHAW, ofBaltimore city, State of Maryland, have invented certain new and usefulImprovements in Fire-Place Heaters;'and I hereby declare the same to befully, clearly, and exactly described as follows, reference being had tothe accompanying drawings, in which Figure l is a front elevation, andFigs. 2,3, and 4 are sectional views, respectively, on the lines w as, 3y, and z 2.

My invention relates to fire-place heaters, or that class of stovesdesigned to heat upper apartments by means of fines leading from theair-drum of the stove, as well as to heat by radiation the apartment inwhich the stove is situated, and it has for its object to so combinewith the stove a system of drums or air chambers and fines as to deliverinto the room containing the stove a current of hot air, and to theupper apartments a distinct current of air, and to so arrange the finesand drums as to properly attemper the currents of air and equalize theheat.

The obstacle has heretofore been met in this class of stoves that thestove either insuffiproviding a flue or fines leading from near the baseof the stove to the air-drum, and thence to the upper chambers, and asecond series of flues, opening into the cellar and leading to the upperportion of the stove, and delivering the heated air over the top of thestove into the room in which the stove is situated. These flues pass upat the side of the stove through the air-drum which supplies the upperchambers with hot air.

The two air chambers or drums or flues, as they may indift'erently betermed, are contiguous to each other and to the fire-chamber, and as aresult the currents of air are properly heated and a comfortabletemperature is maintained in both the lower and upper apartments. Thestove embodying the features about to be described, and which I havedenominated the Pride of Baltimore, has justified in practice 'the abovestatement.

In the drawings, A is the stove-front, having the usual mica windows, a,and B is the coal or feed opening. M is the magazine. 0 is the openingfor the ash-drawer, and G is the grate. These parts are all of the usualconstruction.

Iis a drum, inclosing the rear half of the stove, which drum receivesthe air through the openings D, near the base, and delivers it throughthe opening L to the fines leading to the upper apartments.

H H are a pair of fines contiguous to the stove-body and having openingsh h at their lower portion leading to the cellar. At their upper endsthey terminate flush with the top plate, 0, of the fire-chamber, whichplate is perforated, as at it. (See Fig. 3.) A drum or chamber, K,surrounds the rear half of the stove-chamber above the plate 0 and opensthrough the plate I? under the inclined hood E. In lieu of this theflues H may be made to communicate with the air-ducts leading to theupper chambers, and the drum I may supply hot air to the apartment inwhich the stove is placed.

F is the flue for the products of combustion, having a nipple, F, forthe attachment ofthe stove-pipe.

In operation, the air enters the openings D and is heated within thedrum I by contact with the walls of the stove and finds exit at -L tothe upper chambers. Another current enters the tines H from the cellar,and, passing up through the same within the drum I, and contiguous tothe stove-walls, streams out under the hood E into the lowercompartment. The two currents thus, as it were, attemper each other andequalize the heat.

I have considered it unnecessary to show or describe the dampers, whichare arranged to close or partially close the flues, as they are of theordinary construction and naturally suggest themselves.

I am aware that it is not new, broadly, to heat two distinct currents ofair, the one being led from the apartment in which the stove is placedand the other from the cellar or else where, andsnch I do not claim.

What I claim is-- 1. In a fire-place heater, a casing or drum the stoveand supplying air to the tines leadinclosing an air-space at the rearportion of ing' to the upper apartment or apartments, and one or moreair-fines contiguous to the Wall of the stove and located within thesaid casing, whereby the temperature of the currents of hot air isequalized, as set forth.

2. In a tire-place heater, a casing or drum inclosing the rear portionof the stove, and forming an air-clntmber having an inlet opening at thefront ot'the stove and an exit-orifice communicating with the tineswhich lead to the upper chambers, and a pair ofair-tlues eontiguous tothe wall of the stove and within the said casing, which flues receiveair from the cellar below and discharge it over the top of the store atthe front, as set forth.

3., In a fire-place heater, a semi-cylindrical casin, inclosing anair-chamber at the rear portion of the stove, and a pair ofsemi-cylindrical fines, H, contiguous to the stove-wall and within thesaid. casing, and suitable openings whereby distinct currents of air areled from the base of the stove through the casing and over the fines tothe upper apartments, and from the cellar below through the fines to andover the top of the stove, as set forth.

4. In combination with the stovebody, the inclosing casing or drum,having an opening, 1), on either side, and the tines H contiguous to thestove-Walls Within the drum, the chamber K, and hood E, as set forth.

JOHN B. OLDERSHAW.

Witnesses:

R. I). WILLIAMS, Jno. T. MADDOX.

